Submission #169018

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Source Code Expand

#include<iostream>
#include<cstdio>
#include<algorithm>
#include<vector>
#include<map>
#include<set>
#include<queue>
using namespace std;

int main(){
	int n;
	int c[102];

	long double ans=0;

	scanf("%d",&n);
	for(int i=0;i<n;i++){
		scanf("%d",&c[i]);
	}
	for(int i=0;i<n;i++){
		int cnt=0;
		for(int j=0;j<n;j++){
			if(c[i]%c[j]==0)cnt++;
		}
		int a=(cnt+1)/2;
		ans+=(long double)a/cnt;
	}

	printf("%lf\n",ans);
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:29:20: warning: format ‘%lf’ expects argument of type ‘double’, but argument 2 has type ‘long double’ [-Wformat]
./Main.cpp:16:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
./Main.cpp:18:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result